After being alerted to the improvement by Ryan Warner over on Twitter, we've confirmed on our end that the latest update does indeed remove the interaction restriction. If your car is parked, you can tap and scroll all you want through Google Play Music without any lockouts.

What we can't say at this point is how this will be handled on other apps. Seeing this change shows it's indeed possible to have an app behave differently when the car is parked versus being driven — which makes sense based on how lots of car infotainment systems operate — but seeing this change only for Google Play Music at this point is a bit odd.

If Google is indeed easing this interaction limit when the car is parked across the board, it seems like app developers will have to update things slightly in their own apps to take advantage of the change in restrictions on Google's end. If that's the case, we should see the fruits of this change soon.